400V 230V 480V 690V Active Harmonic Filter 50A 100A 150A Module Reduce Harmonic Less Than 5% Filter 2-50 Harmonics

Quick Detail

Package & Delivery Lead Time

Detailed Description

Active harmonic filter introduction Active harmonic filter (AHF) is a new active electronic harmonic filtering device to reduce voltage harmonic and current harmonics and improve power quality.Based on voltage source inverter, it's connected in parallel with non-linear loads which need to compensate. For compensating harmonic current which is with changing Amp and frequency and reactive power, it overcomes the shortcomings of traditional passive filter. It has the advantages of high compensation accuracy and fast dynamic response etc. Why need Active Harmonic Filter? Because harmonic exist caused by non linear components such as UPS, Switching power supply, Rectifier, Frequency inverter, Frequency adjustable air conditioner, Inductive heating furnace, Electronic computer, Charger and Lights etc. Harmonicwill bring below problems, thats why the active harmonic filter is required? 1.Bad effect to power grid and power equipments Effect to power capacitor-1.add power loss, 2.get abnormal hot, 3.shorten lifespan.Effect to Transformer-1.increase copper loss,2.shorten lifespan, 3.cause burnt downEffect to power cable-1.less current conduction ability, 2.cause resonance.Effect to power distribution circuit-1.affect line stable and safe running, 2.distortion of current and voltage waveformEffect to power equipments-1. low voltage switching equipments misact, 2. cause power trip.Effect to motor-1.shorten lifespan,2.increase power loss, 3.damage motor2. Bad effect to surrounding equipments Reduce relay protection system and automatic system reliabilityInterference to communication system-cause distortion of image, data treatment error, damage equipments computer, TV etc.3. More power loss, increase power cost Harmonic generates extra harmonic power and increase company's power.Harmonic's skin effect on cable cause very big cable temperature rise, power changes to heat on cable and cause power waste, and cause insulation damage, cause discharge to earth.Transformer's iron loss and copper loss are increased, cause transformer's noise and heat.Where need Active harmonic filter? Subway, airport, highway, hospitals, sea platform etc. These places have high harmonics, and have very high requirement to electricity, once power quality problems happen, it will cause huge loss. Green Power Active Harmonic Filter is the optimized solution to solve power quality problems, it will compensate 2-50 harmonic and also solve other power quality problems. Port, Vehicle manufacturing, metallurgy, Petrifaction,Data center etc.These places have big reactive power, or serious 3 phase imbalance, or great impact to power network, or reactive power and harmonic etc. Problems, Green Power APF and SVG is the best option. Photovoltaic, Shopping mall, General Factory etc. Application case Case 1: Metallurgyindustry Main load is inductive heating power supply, have high harmonics, and the transformer capacity is relative small, current harmonic distortion THDi up to 31%, and voltage distortion up to 21% because of current harmonic’s interference, power factor as low as 0.55. Site ventilation is not well, much dust, is complex and harsh working conditions of “current harmonic+voltage harmonic+serious reactive power+dust pollution+high temperature”. Use Green Power products with strong anti interference ability, compensate current harmonic to normal and improve voltage harmonic distortion, THDi reduces to 4.3%, THDv reduces to 4.5%. Power factor up to 0.98. shown below. Case 2: welding industryThe main load is hanging spot welding, mechanical arm, pipeline and motor, spot welding use single-phase power, when it’s working, the current fluctuation is large and have serious imbalance. The A phase current (yellow) is 0, B and C are 278A and 317A, the power factor is 0.52, the current distortion rate is 40%, because most of the unbalanced current flows through the neutral line, resulting in serious heat. It is a complex and harsh working condition with "current harmonic + imbalance and serious reactive power". After compensation to harmonic and reactive power, the effect of comparison is as follows, three-phase current unbalance disappeared, the neutral current is 0, voltage and current harmonics disappeared, THDi decreased to 2.7%, the power factor is increased to 0.98. Whats special of Green Power? 1. Modular structure Modules independent running, in case of any module break-down, other modules are not affected. Easy maintenance and repairt. N+1 redundancy 2. Strong anti pollution ability  Except fans, all conductive components are isolated with outside, suitable for dust, salt and alkali, wet and serious harsh occasions. The module inside pictures: 3. Simple on-site installation  The user can choose above bus bar or below cables, can choose the load or grid side for external current sampling CT.4. Limitless combination APF,SVG,C 3 types, different specification of modules could be combined together, APF, SVG could also used together with capacitors to save cost, and no resonance occurs.5. Very high power density  Modular design APF or SVG could match 600mm wide cabinet, 600mm deep cabinet, 600mm wide*600mm deep cabinet or any bigger cabinet, one cabinet capacity could be up to 900A/600kvar, while the mainstream industry is<600A/400kvar. Higher power density could save floor area and reduce cost.6. Very low loss Active power<2.5%, others <3%~4%. 7. Very low noiseHigh quality soft magnetic reactor, as well as the scientific wind tunnel design, at full load working noise is not more than 60dB, while the mainstream industry noise<70dB. 8. Very high Current loop bandwidthFirst reached a quasi natural sampling and continuous control, the equivalent switching frequency to 80K Hz, the current band width reaches 4kHz, the inhibition rate on the interference reaches more than 4 times of other companies in the industry, while the industry mainstream index were 20kHz/1kHz. Equipment has higher current loop bandwidth, the protection will be more timely, remains stable work even under very bad situation, you can achieve the effect of parallel with the pure capacitor will not happen resonance. Technical parametersAPF（A）SVG（kvar）SpecificationModule type3050751001503050100Module size（W*H*D）480*200*530\480*200*530\\680*200*530\680*200*530Parallel quantity15InputWorking voltage400V/690V（-20% ~ +15%）Working frequency50Hz（-10% ~ +10%）Current transformer100:5 ~ 10000:5Output   (Width*Depth)600*600 cabinetPower ≤150APower ≤100kvar800*600 cabinetPower ≤300APower ≤200kvar600*800 cabinet800*800 cabinetPower ≤900APower ≤600kvarFunctionsHarmonic compensation2-502-13 (50% of rated current)Harmonic filter rate>97%Reactive power compensation-1~+1 adjustable3 phase imbalance compensation100% imbalance compensationCommunication interfaceCommunication methodRS232, 485, Modbus protocol, TCP/IP optionalCommunication interfaceRS485, internet interfaceComputer softwareYes, all parameters are set on computerFault alarmYes, record 500 alarm information mostMonitorSupport modules independent monitor or one cabinet central monitorTechnical parametersTotal response time<10msActive power loss<2.5%Heat dissipationIntelligent air coolingNoise<60dBSampling/control frequency160kHzEquivalent switching frequency80kHzCurrent loop cut-off frequency4kHzProtectionsOver voltage, under voltage, over heat, over current, short circuit etc. more than 20 protectionsCT installation placeLoad side/grid size optionalMechanical parametersWall mounting sizeSame as rack typeModule weight25kg（<=75a>=100A/100kvar）=75aColorRAL 7035Working conditionAmbient temperature-10℃~+45℃Altitude<5000m(above 1000, every 100m more, capacity reduce 1%)Relative humidity<95% no condensationProtection degreeIP20, custom design for higher level  Above size is 150A APF, 50A module width is 480mm, others are the same. Wall mounting type is the same as rack type for the same rating.     Features Reliable harmonic and reactive power compensationInternational advanced technologyReliable control system: fully digital controlModule structureSmall sizeCompensate harmonic and reactive powerFilter 2-50 harmonics or specified harmonicFast response, response time<50usHigh efficiencyFlexible installationOutdoor use solution Stainless steel enclosure, IP44 rating. url:http://www.gprectifier.com

Basic Company Information

Beijing Green Power Technology Co., Ltd

Company Advantage

Detail Company Introduction